In the Cumbre DX User Group Dave Valko posted a very tentative logging of an UNID on 6115 at 0600ish which might very well turn out to be Brazzaville. I have taken a look-see the last few nights and there very definitely is something happening there, but what it is ain't exactly clear.
Continued work needed on this; I have tried many times to catch Brazzaville via Twente without luck.